Lab 5 RS

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LC Resonance circuits

The LC circuit

TF EIM Lab5 LC.png

Design a parallel LC resonant circuit with a resonant frequency between 50-200 kHz. use L = 10 - 100 μH, R = 1k Ω

ω0=1LC

I choose the following values for L and C:

L=33 μH
C=1.024 μF
R=0.989 kΩ
RL=2.5 Ω

So the resonance frequency is ω0=133 μH1.024 μF=172103 radsec

f=ω02π=27.4 kHz

And

Q=1RLC=2.27

Construct the LC circuit using a non-polar capacitor

Measure the Gain VoutVin as a function of frequency. (25 pnts)

Compare the measured and theoretical values of the resonance frequency (ωL) (10 pnts)

Questions

1.Is there a value of R in which VoutVin at resonance. What is the value?(5 pnts)

The RLC cicuit

TF EIM Lab5 RLC.png

Design and construct a series LRC circuit

Measure and Graph the Gain as a function of the oscillating input voltage frequency. (25 pnts)

Measure and Graph the Phase Shift as a function of the oscillating input voltage frequency. (25 pnts)

Questions

What is the current I at resonance? (5 pnts)

What is the current as ν? (5 pnts)

Forest_Electronic_Instrumentation_and_Measurement

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